Heater cabinet or similar article



FIG. 1 is a left front perspective view of a heater cabinet or similar article showing my new design;

FIG. 2 is an enlarged front elevational view thereof;

FIG. 3 is an enlarged rear elevational view thereof;

FIG. 4 is an enlarged right side elevational view thereof;

FIG. 5 is an enlarged left side elevational view thereof;

FIG. 6 is an enlarged top plan view thereof; and

FIG. 7 is an enlarged bottom plan view thereof. 

The ornamental design for a heater cabinet or similar article, as shown. 